ʻO ke ala koho o ka pā kila titanium

ʻO ka alloy Titanium kahi huila i haku ʻia me ka titanium a me nā mea ʻē aʻe. ʻElua ʻano o nā kristal homogeneous a heterogeneous ka Titanium: hoʻopili piha ʻia ka hale hexagonal ma lalo o 882 ℃ α Titanium, cubic i waena o ke kino ma luna o 882 ℃ β Titanium. I kēia manawa, e nā hoa hana mai RSM Technology Department e kaʻana like i ke ʻano koho o nā papa alloy titanium

　　Nā koi ʻenehana:

1. E hoʻokō ka hui kemika o ka pā hao titanium i nā ʻōlelo o GB / T 3620.1, a ʻo ka ʻae ʻia ʻana o ka ʻae ʻana o ka hui kemika e hoʻokō me nā ʻōlelo o GB / T 3620.2 i ka wā e nānā hou ai ka Demander.

2. ʻO ka hewa i ʻae ʻia o ka mānoanoa o ka pā e hoʻokō me nā ʻōlelo ma ka Papa I.

3. ʻO ka hewa i ʻae ʻia o ka laula a me ka lōʻihi o ka pā e hoʻokō me nā ʻōlelo ma ka Papa II.

4. E ʻoki ʻia kēlā me kēia kihi o ka pā i kahi kihi ʻākau e like me ka hiki, a ʻaʻole e ʻoi aku ka ʻoki oblique ma mua o ka ʻae ʻia ʻana o ka lōʻihi a me ka laulā o ka pā.

Hiki ke hoʻokaʻawale ʻia nā mea hoʻohui i ʻekolu mau ʻāpana e like me kā lākou hopena i ka mahana hoʻololi:

① Stable α Phase, ʻo nā mea e hoʻonui ai i ka mahana hoʻololi o ka pae ʻo α Stable element me ka aluminika, carbon, oxygen a me ka nitrogen. ʻO ka alumini ka mea hoʻohui nui o ka titanium alloy, nona nā hopena maopopo i ka hoʻomaikaʻi ʻana i ka ikaika o ka alloy ma ka lumi wela a me ka wela kiʻekiʻe, e hōʻemi ana i ka gravity kikoʻī a hoʻonui i ka modulus elastic.

② Stable β Phase, ʻo nā mea e hoʻemi ana i ka mahana hoʻololi o ka pae he β Hiki ke hoʻokaʻawale ʻia nā mea paʻa i ʻelua ʻano: isomorphic a me eutectoid. Hoʻohana ʻia nā huahana Titanium alloy. ʻO ka mua me ka molybdenum, niobium, vanadium, a pēlā aku; ʻO ka hope e pili ana i ka chromium, manganese, keleawe, hao, silika, etc.

③ ʻAʻole liʻiliʻi ka hopena o nā mea ʻokoʻa, e like me ka zirconium a me ka tin i ka mahana hoʻololi.

ʻO ka oxygen, nitrogen, carbon a me ka hydrogen nā mea haumia nui i nā alloys titanium. ʻO ka oxygen a me ka nitrogen i loko o ka α He nui ka solubility i loko o ka māhele, he mea hoʻoikaika nui i ka titanium alloy, akā e hōʻemi i ka plasticity. ʻO ka mea maʻamau i ʻōlelo ʻia ʻo ka ʻike o ka oxygen a me ka nitrogen i ka titanium he 0.15 ~ 0.2% a me 0.04 ~ 0.05% kēlā me kēia. ʻO ka waihā i loko o ka α He liʻiliʻi loa ka hoʻoheheʻe ʻana i ka māhele, a ʻoi aku ka nui o ka hydrogen i hoʻoheheʻe ʻia i loko o ka titanium alloy e hoʻohua i ka hydride, e hoʻoheheʻe ʻia ka alloy. ʻO ka maʻamau, ʻo ka ʻike hydrogen i ka titanium alloy ke hoʻomalu ʻia ma lalo o 0.015%. Hiki ke hoʻohuli ʻia ka hoʻoheheʻe ʻana o ka hydrogen i ka titanium a hiki ke hoʻoneʻe ʻia e ka annealing vacuum.